PHOTO 3. This is that auxiliary application I was talkingabout. However, it is running on the PIC16F690.The PIC16F88 is assisting by doing the math thatyou see in the display.

Wire in one of the PICDEM lab development board’s
N-channel MOSFETs between the motor and ground, and
drive the MOSFET gate from GP2. Changing the TMR0
value changes the period of the square wave that is being
produced at pin GP2 which, in turn, changes the speed
of the motor. We’ve just proven that you don’t have to
resort to 80-pin PIC devices to drive large LCDs, send
messages, process analog data, or spin motors. SV